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|Åsgard subsea compressor station on the seabed - © Aker Solutions|
MAN Diesel & Turbo:
“After an extensive development, qualification and testing program, we’re very excited to see our units in operation,” says Patrik Meli, MAN’s head of engineering and development and Åsgard project director in Zurich. “Our remotely controlled, encapsulated and emission-free HOFIM™ compressor met all the requirements needed for a maintenance-free operation on the sea bed.”
MAN Diesel & Turbo has worked with Statoil on a joint subsea compressor qualification program. The project required an extremely robust motor-compressor design in order to withstand the harsh conditions of subsea environments 300 metres below sea level. The adapted subsea HOFIM™ features a tailored motor design, casings designed for 220 bar pressure, a 7-axes active magnetic bearing system and a special cooling gas extraction.
In 2010, Aker Solutions awarded the contract for the Åsgard turbocompressors to MAN in Zurich. The scope of work comprised the supply of four hermetically-sealed single HOFIM™ units, each compressor (size RB 45) with integrated MAN motor (size M43). The contract also encompasses long term field services and life cycle support.
While the first compressor train started production, the second train is under commissioning.
Source: Roberto Rubichi, Sebastian Weishaupt,